Patents Examined by Zinna W. Davis
  • Pyridine compounds which are useful as leukotriene B4 antagonist
    Patent number: 5225422
    Abstract: Leukotriene B.sub.4 antagonists of the formula: ##STR1## wherein each symbol is as defined in the specification, processes for producing them, and pharmaceutical compositions containing them. The compounds of the present invention are very useful as the drugs for the treatment of allergic and inflammatory diseases.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: July 6, 1993
    Assignee: Sumitomo Pharmaceuticals Co., Ltd.
    Inventors: Hideo Nagata, Hajime Kawakami